Chemistry, 06.07.2019 16:30, silasjob09
Substance a undergoes a first order reaction a b with a half- life of 20 min at 25 °c. if the initial concentration of a ([a]◦ ) in a sample is 2.7 m, what will be the concentration of a after 60 min?
Answers: 1
![\text{[A]} = \frac{\text{[A]}_{0}}{2^{n}}\\](/tpl/images/0058/5351/1d880.png)
![\text{[A]} = \frac{\text{2.7 mol/L}}{2^{3.0}} = \frac{\text{2.7 mol/L}}{8.0} = \textbf{0.34 mol/L}](/tpl/images/0058/5351/6fa4d.png)
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Substance a undergoes a first order reaction a b with a half- life of 20 min at 25 °c. if the init...
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